Network management apparatus, method, and program

Abstract

A network management device includes a priority calculation unit to apply, to a situation in which, when a failure in communication occurs in a plurality of buildings that houses a communication facility. When a condition in which the failure that occurred is assumed to be restored regarding a plurality of combinations of some buildings among the buildings in which the failure has occurred by performing restoration on the communication facility housed in the building is applied, the failure in communication continuously occurs in a building that houses a communication facility used for providing a predetermined type of communication service among the plurality of buildings, a policy that defines weighting corresponding to the situation and calculate, for each of the plurality of combinations, priority of a possible combination of buildings in which the failure that occurred is to be actually restored among the buildings in which the failure has occurred.

1 . A network management device, comprising:
 priority calculation circuitry configured to apply, to a situation in which, when a failure in communication occurs in a plurality of buildings that houses a communication facility and when a condition in which the failure that occurred is assumed to be restored in each building regarding a plurality of combinations of some buildings among the buildings in which the failure has occurred by performing a restoration work on the communication facility housed in the building is applied, the failure in communication continuously occurs in a building that houses a communication facility used for providing a predetermined type of communication service among the plurality of buildings, a policy that defines weighting corresponding to the situation, and to calculate, for each of the plurality of combinations, priority of a possible combination of buildings in which the failure that occurred is to be actually restored among the buildings in which the failure has occurred.   
     
     
         2 . The network management device according to  claim 1 , wherein:
 the policy includes a first policy that defines weighting corresponding to the situation of the failure in communication continuously occurring in a building that houses a communication facility used for providing a first type of communication service among the buildings in which the failure has occurred when the assumed condition is applied and a second policy that defines weighting corresponding to the situation of the failure in communication continuously occurring in a building that houses a communication facility used for providing a second type of communication service among the buildings in which the failure has occurred when the assumed condition is applied; and   the priority calculation circuitry calculates, for each of the plurality of combinations, a score regarding the priority of a possible building in which the failure that occurred is to be actually restored among the buildings in which the failure has occurred by applying the first policy to the situation of the failure in communication continuously occurring in the building that houses the communication facility used for providing the first type of communication service among the buildings in which the failure has occurred when the assumed condition is applied, and   when scores calculated for the plurality of combinations are same as a result of the calculation and when the assumed condition is applied to the combinations, calculates, for each of the plurality of combinations having the same score among the plurality of combinations, a score regarding the priority of the possible building in which the failure that occurred is to be actually restored among the buildings in which the failure has occurred by applying the second policy to the situation of the failure in communication continuously occurring in the building that houses the communication facility used for providing the second type of communication service among the buildings in which the failure has occurred, and thus calculates, for each of the plurality of combinations, the priority of the possible combination of the buildings in which the failure that occurred is to be actually restored among the buildings in which the failure has occurred.   
     
     
         3 . The network management device according to  claim 1 , wherein:
 the situation of the failure in communication continuously occurring in the building that houses the communication facility used for providing the predetermined type of communication service includes   the number of buildings regarding the continuously occurring failure in communication when the assumed condition is applied and the number of users who are housed in the buildings and use the predetermined type of communication service.   
     
     
         4 . The network management device according to  claim 1 , further comprising:
 a plan processing circuitry configured to plan an actual restoration work from the failure that occurred on the basis of a condition regarding the restoration work of the failure with respect to the building corresponding to the priority calculated by the priority calculation circuitry.   
     
     
         5 . The network management device according to  claim 4 , wherein:
 the plan processing circuitry prioritizes a building having higher priority calculated by the priority calculation circuitry and plans a vehicle to be actually deployed to the building and a movement route of the vehicle to the building on the basis of information regarding the failure in the building and information regarding a possible vehicle deployed for the restoration work of the failure in the building.   
     
     
         6 . A method, comprising:
 applying, to a situation in which, when a failure in communication occurs in a plurality of buildings that houses a communication facility and when a condition in which the failure that occurred is assumed to be restored in each building regarding a plurality of combinations of some buildings among the buildings in which the failure has occurred by performing a restoration work on the communication facility housed in the building is applied, the failure in communication continuously occurs in a building that houses a communication facility used for providing a predetermined type of communication service among the plurality of buildings, a policy that defines weighting corresponding to the situation and calculating, for each of the plurality of combinations, priority of a possible combination of buildings in which the failure that occurred is to be actually restored among the buildings in which the failure has occurred.   
     
     
         7 . The network management method according to  claim 6 , wherein:
 the policy includes a first policy that defines weighting corresponding to the situation of the failure in communication continuously occurring in a building that houses a communication facility used for providing a first type of communication service among the buildings in which the failure has occurred when the assumed condition is applied and a second policy that defines weighting corresponding to the situation of the failure in communication continuously occurring in a building that houses a communication facility used for providing a second type of communication service among the buildings in which the failure has occurred when the assumed condition is applied; and   calculating the priority includes calculating, for each of the plurality of combinations, a score regarding the priority of a possible building in which the failure that occurred is to be actually restored among the buildings in which the failure has occurred by applying the first policy to the situation of the failure in communication continuously occurring in the building that houses the communication facility used for providing the first type of communication service among the buildings in which the failure has occurred when the assumed condition is applied, and   when scores calculated for the plurality of combinations are same as a result of the calculation and when the assumed condition is applied to the combinations, calculating, for each of the plurality of combinations having the same score among the plurality of combinations, a score regarding the priority of the possible building in which the failure that occurred is to be actually restored among the buildings in which the failure has occurred by applying the second policy to the situation of the failure in communication continuously occurring in the building that houses the communication facility used for providing the second type of communication service among the buildings in which the failure has occurred, and thus calculating, for each of the plurality of combinations, the priority of the possible combination of the buildings in which the failure that occurred is to be actually restored among the buildings in which the failure has occurred.   
     
     
         8 . A non-transitory computer readable medium storing a network management processing program for causing a processor to function as each of the circuitries of the network management device according to  claim 1 . 
     
     
         9 . A non-transitory computer readable medium storing a network management processing program for causing a processor to perform the method of  claim 6 .